Winding machine



Jan. 4, 1944. E. J. ABBOTT WINDING MACHINE 7 Sheets-Sheet 1 Filed Aug.1, 1940 .Z/zajerziar ,gfr

Jan. 4, 1944. ABBOTT 2,338,085

WINDING MACHINE Filed Aug. 1, 1940 7 Shets-Sheet 2 Jan. 4, 1944. ABBOTTI 2,338,085

WINDING MACHINE Filed Aug. 1, 1940 7 Sheets- Sheet 3 Jan; 4, 1944.ABBOTT I 2,338,085

WINDING MACHINE Filed Aug. 1, 1940 7 Sheets-Sheet 4 Jan. 4, 1944. 'E. J.ABBOTT WINDING MACHINE Filed Aug. 1, 1940 '7 Sheets-Sheet 5 Jrzaerziargig/W PIP):

Jan. 4, 1944. v E. J. ABBOTT 2,338,085

' WINDING MACHINE Filed Aug. 1, 1940 7 Sheets-Sheet 6 Jan. 4, 1944. 5,AB-BOTT wmnme MACHINE 7 Filed Aug. 1, 1940 7 Sheets-Sheet '7 ,ZZZZ

Mar

Patented Jan. 4, 1944 UNITED stares WINDING MACHEVE Edward .F. Abbott,Wilton, N. H., assignor to Abbott Machine Company, Wilton, N. H., acorporation of New Hampshire Application August 1, 1940, Serial No.349,103

41 Claims. (01. 24.2-43.5)

This invention relates to winding machines and has for its principalobjects to provide improved mechanism for the control of many of theoperations of winding, including the advance of traverse mechanismaxially during the winding, the stopping of winding upon the detectionof breakage or exhaustion of the yarn being wound, the winding of abunch or reserve winding on the bobbin before the main winding, thereturn of traverse mechanism to the position for the starting ofwinding, the winding of an open spiral on the finished main body ofwinding, and the stopping of the machine in condition for easy changingof the bobbins.

The invention further aims to provide improved mechanism for controllingthe axial location of the zone of traverse in accordance with thedetected growth of the winding package and affords mechanism of thistype having improved accuracy and sensitivity. The invention alsoprovides a simplified type of control of the traverse in which thedetected growth of one winding package of a group controls the shiftingof the zone of traverse as to all of the winding packages. The inventionfurther provides improved arrangements in which the shifting of the zoneof traverse is accomplished by motor driven means controlled by feelermechanism which in itself is not required to supply the power foraccomplishing the shifting movement of the traverse.

In its preferred forms shown in this application the invention isapplied to a machine for simultaneously winding a considerable number ofbobbins in which the bobbins are most expeditiously changed in sets asin the manner .of typical spinning machines, and the invention providesfor automatically controlling the various operations of winding in suchmanner that, aside from repairing any breaks or exhaustion of yarn, allthat the operator is called upon to do is to change the bobbins andoperate a push button to start the machine.

The invention provides improved control mechanism permitting the windingto be stopped at any stage upon the detection of breakage or exhaustionof a yarn, and to be started after rep-air of the breakage or exhaustionbut without disruption of the pattern of winding traverse.

The copending application of Edward J. Ab-. bott, Serial No. 323,203,filed March 9, 1940, now Patent No. 2,295,535, discloses a windingmachine having therein a Winding package holderand' a yarn traversingelement, a detector responsive,

to the position of the surface of the package,

power driven means for shifting the relative-positions of the packageholder and traversing device, and means whereby the detector controlsfollowing more detailed description and drawings, wherein the inventionis explained by a description of two examples thereof.

In the drawings:

Fig. 1 is a front .view of the right hand end portion of a windingmachine according to the invention; t

Fig. 2 is a right end view of the niachinof Fig. 1;

Fig. 3 is a front view on a larger scale'ithan Fig. 1 showing theendmost winding spindle and bobbin and the winding package detectormechanism;

Fig. 4 is a right end view of the mechanism of Fig. 3;

; Fig. 5 is a fragmentary plan of the mechanism of Figs. 3 and 4;

Fig. 6 is a fragmentary view partly in section on the line 6-45 of Fig.2, showing a driving connection for the fast motion of the traversemechanism, including a clutch adapted to release the fast motion fromits driving mechanism.

Fig. '7 is a fragmentary front view of a portion of the creel showingalso one of the yarn-guide, tension and detectorunits;

Fig. 8 is a fragmentary plan view of the apparatus of Fig. '7;

Fig. 9 is a right side view on a larger scale than Fig. 7 showing one ofthe yarn guide, tensicn and detector units;

Fig. 10 is a View similar to Fig. 1 showing a -modiiied form of controlof the slow traverse,

motion by the winding package detector mechanism; and

Fig. 11 is a right end view of the machine of i Fig. 13 is a verticalsectional View through one of the spindles and its driving connections.

Referring to Figs. 1 to 9, inclusive, the frame of the machine includessuitable end members of which one is shown at 2! in 1 and 2, and anysimilar suitable intermediate cross members which together support alongitudinal C-shaped channel 22 which serves as a support for thevertical winding spindles shown more fully in Fig. 13 of which themachine may contain for example forty.

A horizontal shaft 21, mounted in bearings 28 at intervals along theframe, carries V-shaped pulleys 30 frictionally contacting withV-shapedcork pulleys 3| on the bottoms of the respective spindles to drive thelatter. This horizontal spindle driving shaft 21 is driven through apulley 35, belt 35, and pulley ii? from a main shaft 38 which is drivenby suitable main motor (not shown but indicated at 399 in the wiringdiagram of Fi 12).

Referring to Fig. 13 each spindle 4| is rotatably mounted in a bolster52 which is vertically slidable in a spindle holder or casing 43 whichis secured to the upper flange of the channel 22. In order to supplementthe weight of the spindle and bolster in holding the cork pulley 3! incontact with the metal pulley 3d, a spring 44 is provided and arrangedso that its bottom presses downwardly on the lower enlarged portion ofthe bolster 42 thus pressing the bolster and spindle downwardly andholding the cork pulley 3! in tight contact with the driving pulley 36.The upper part of the bolster 42 floats in the upper part of the spintlecasing 43 so that the rotating spindle can rotate about its center ofgravity at high speed. A flan e 45 extending inwardly from the spindlecasing has an opening large enough to allow some freedom of motion ofthe spindle for this purpose. In order to prevent undue vibration of thespindle a frictional resistance to such vibration is provided by acollar 46 which surrounds the bolster 42 fitting the bolster justloosely enough to allow the bolster to slide up and down. The upper edgeof the collar 46 frictionally contacts the flange and is pressed againstit by the upper end of the spring.

Vertical tubes to (Figs. 6 and 7) serve as supports for pivotallymounted brackets SI holding the supply package pegs 63. In front of andspaced between the vertical tubes '50, vertical angle irons Ill arearranged to carry the yarn guide, tension and detector units throughwhich the yarns pass from the supply packages S to the traversemechanism. As shown in Figs, '7 and 8, in the normal positions of thepivoted brackets 6!, a pair of pegs 63 and supply packages S pointtoward a hole '32 in a plate 13 which is carried by the angle iron it.

The pegs 63 of the creel are adapted for magazining of the supplypackages S, that is, on a pair of pegs 53 that point to a common hole 72the tail end of the yarn of one package can be tied onto the head end ofyarn of the other package,

A yarn guide, tension and detector unit may for example be constructedas follows: A bracket I4 may carry any suitable tension device such as apair of discs E held by a pin it, the yarn running between the discsfrom the guide hole I2 in the plate It. A drop wire indicated generallyat I9I is in the form of a bell crank pivotally mounted on the bracketis at '53. (Jne end of this drop wire is provided with a pigtail I92through which the yarn runs after passing the tension discs '55. Normaltension on the yarn holds the drop wire in its full line position ofFig. 9, but upon breakage of the yarn the drop wire drops until it ischecked by a bolt "I9 which is insulated from the frame and connected toan electric wire Hit. Upon breakage of the yarn a circuit is closedbetween wire I and the frame of the machine, which as explained inconnection with the wiring diagram of Fig. 12, operates to stop the mainmotor 300.

Tranersz'ng mechanism In approaching the winding spindles 4!, each ofthe winding yarns Y runs underneath and partly around a horizontal tube36 which is adapted to swing in the are T from the full line position ofFig. 2 to the dotted line position of that figure, close to the surfaceof the winding package. The tube I36 is supported at intervals acrossthe winding machine by arms 8'! which are secured to a tubular shaft 89adapted to oscillate in suitable bearings.

The shaft 39, arms 81 and yarn-guiding tube 86 ar adapted to beoscillated with the necessary motion to build a filling wound package bymeans of an arm connected to shaft 89, and a lifter link 9i. Theappropriate motion is a composite one consisting of a relatively quickshort traverse component througlfl for example approximately 1% inchesand a relatively slow progressive component or shifting of the shortrange of traverse from one end to the other of the winding package.

Referring to Fig. 2, the lower end of the lifter link iii is connectedto mechanism which combines both components of the traverse motion, andfor this purpose is preferably pivotally connected at 94 to a link 95having at its right end a follower 95 adapted to receive the quickshort-traversing motion and at its left end a follower ill adapted toreceive the long progressive traversing motion, the link 55 thuscombining these two components of the traverse motion.

Referring to Figs. 2 and 6, the quick motion follower 96 is driven by adouble heart-shaped cam Iflii having the necessary contour so that onerevolution of the cam results in two of the short, quick strokes oftraverse. As shown in Figs. 2 and 6, the cam I00 is driven from the mainshaft 38 by a connection consisting of a pulley It I, belt I92, pulleyI03 and friction clutch consisting of a plate Hi4, which is fastenedonto the pulley I93 and a plate I05 which is fastened into the cam I00.

A shaft ID'I surrounded by a stationary sleeve Iill' and slidablelengthwise therein carries a cap I68 at its outer end, the capcontaining ball bearings of which the inner race is adapted to react ona sleeve IE9 which is fastened to both thecam I and the friction plateHi5 and is rotatable on the stationary sleeve Illl (Fig. 6). The shaftlii'I extends inwardly through the frame of the machine and at its innerend is pivotally connected to a link I I!) having integral therewith afinger Ill adapted to abut against a boss III! on the frame. The inneror right hand end of link H6] is connected to the plunger lid of adashpot H3, the plunger H4 being connected by a suitable spring H5 tothe armature Nb of a solenoidl II.

In the starting of the quick-traverse motion at the beginning of windinga set of packages, the solenoid I! I is energized by electricalconnections to be described later, lifting the armature H6, and throughthe spring H5 lifting the ace-8,088

dashpot plunger I I4 against theretarding action of the dash-pot, thusraising the right end of link IIU. Through the reaction of the boss II2on finger III the link H6 pulls the shaft i6'I to the right in Fig. 6,thus pulling the two friction plates I04 and I65 together and causingthe cam Iilfl' to be driven.

In stopping the quick traverse motion at the completion of winding a setof packages, the solenoid III is de-energized and the parts returned totheir position shown in Fig. 6. The cam I96 is no longer driven but isfree to rotate about shaft 'IIE'I. The weight and pressure of the link95 and follower 96 (Fig. 2) acting on the cam I66 restore the cam to itslowest position, that is the position shown in Fig. 2 where the follower'36 sits at one of the two equally low places on the cam. This assuresthat at the end of the winding operation the yarn-guiding tube 36 will,so far as the quick-traversing motion is concerned, be left at itslowest point and further that when the quick-traversing component isstarted again it will begin at the lowest point in its stroke.

Slow progressive traverse motion The slow progressive component of thetraverse motion is imparted to the follower 9? by a cam I having agradual rise and quick fall, and which is so proportioned that onerevolution of the earn from its low point in which it is shown in Fig. 2will progressively raise the traversing tube 86 through a distance equalto the total length of winding on the package minus the length of theshort quick-traversing stroke.

In the form of the machine shown in Figs. 1 and 2 the cam I26 isdriventhrough gearing comprising a shaft I2I on which the cam is mounted, agear I22, pinion I23, shaft I24, worm wheel I and a worm I26 by a shadedpole electric motor IZ'I. The motor I2! is operated at intervals bycontrol mechanism now to be described so as to bring about the slowprogressive movement at the proper rate to cause the finished package tohave the desired contour. That is, as the part of the package on whichthe winding is taking place attains its correctdiameter, detectormechanism operates to start the motor I21 and advance the cam I26 sothat the zone of winding is shifted axially a sufficient distance.

Winding package detector and traverse control mechanism The shaded poleelectric motor i2? is controlled by a switch 5553 which as shown in Fig.4 preferably comprises a pairof contacts I28 and I26 held respectivelyby resilient arms I33 and I3'I normally out of contact, but adapted tobe closed by the pressure against arm I 39 of the end of an adjustablebolt I32 carried by a swingin arm I65 which is operated by the packagedetector.

Referring to the wiring diagram in Fig. 12, there is shunted across theswitch I55) a resistance IBI of sufficient conductivity to tend tooperate the motor I2! but insufficient to run the motor when the switchIfiil is open. When the switch I56 has its contacts very lightly closed,the motor begins to run, but as the contacts become more firmly closedthe motor runs faster.

Thus the switch I56 and its connections to the motor enable the motor tobe run at a variable speed depending upon the degree of pressure withwhich the switch contacts are closed.

As shown in Figs, 1 to 5, inclusive, a bracket I66 is fastened on theupper right hand. end portion of the c-shaped flange 22, this bracketI66 serving to support the detector and switch mechanism. Within thebracket I66 and mounted on ball bearings IBI, there is rotatably mounteda verticalrod I62. Asecond approximately vertical rod I63 is clampedbetween split end portions of the arm I65 of which the other end isclamped onto rotatable rod I62. Thus, rod I63 swings about the verticalaxis of the rod I62 as a center. A sleeve I66 vertically slidab-le onrodI62 carries rearwardly directed clamp portions I61 and IE8 which clampbetween them an approximately horizontal detector wire I69. As shown inFigs. 3 and 5, the left end of the detector wire I69 is adapted tocontact with the winding on the bobbin B while the right end is bentinto a loop surrounding the rod I53.

Referring to Figs. 2, 3, and 4, a vertical lifter rod I72 is connectednear its bottom to the cam follower 67 that is operated by the slowprogressive traverse motion cam I26 and at its top carries a bracket 513having a forked end straddling the detector wire I69. Thus the detectorWire is progressively raised as the slow progressive traversing motionshifts the range of traverse axially of the package.

The left end of the detector wire I69 is'thus held opposite to thelowermost portion of the range of quick traversing movement. When theyarn reaches the desired diameter at this point it forces the left endof the detector wire I69 away from the axis of the bobbin or toward theobserver in Fig. 3 thus forcing the right end of the detector wire andthe rod I63 and arm I65 to the right in Fig. 4, closing the switch I50.Then as explained above, the motor I2! is actuated to move the cam I29]and shift the zone of traverse.

The ultimate shape of the wound package is determined by the shape ofrod. I63 and by providing detachable rods I63 of different shapes,different packages may be wound. In the preferred form illustrated, therod I63 is shaped to impart to the package a conical nose and conicalbase with the middle portion of uniform diameter. Referrin to Fig. 4, itwill be observed that the rod I63, in the part of its heightcorresponding to the lower conical portion of the package is inclined tothe right, resuming a vertical direction at approximately the levelwhere the finished package assumes a cylindrical shape. Thus at thelower part of the rod I63 where the rod 563 has an inclined profile, thedetector wire I69 is effective to close the switch I56 at diameters ofthe package less than those at which it is effective to close the switchin the main central part of the package in which region the rod Hit-hasa straight vertical profile.

the lowest level of the detector wire, corresponding to the bottom ofthe package, the portion of the bent rod I63 engaged by the detectorwire E69 occupies a position such as to direct the bobbin-feeling end ofthe detector wire in close to the surface of the bobbin; accordingly atthat level a relatively slight thickness of wound yarn on the bobbinwill react on the detector wire to move the bent rod I53 and close theswitch I56. At the level correspondingto the beginning of the straightvertical portion of rod I63 a thickness of wound yarn such as present inthe main straight body portion of the wound bobbin is required in orderto cause the detector wire to move the rod I63 to close the switch. Inbetween the extreme bottom of the package For example,-

and the level corresponding to the beginning of the straight verticalportion of the rod I63 the profile of the inclined part of rod I63,inclined between the position of its lower end and the position if itsstraight upper portion, determines for each level the diameter of woundyarn that is required in order to cause the detector wire to move therod M3 to close the switch.

General sequence of operation With the parts of the apparatus in thepositions shown in Figs. 1 and 2 but with empty bobbins placed on thespindles, the machine is started to operating by briefly closing thepushbutton switch SIZ indicated in wiring diagram of Fig. 12.

Although the main motor 3% and the solenoid II! are energized at thesame time, engagement of the clutch HM, I85 is delayed after thestarting of the main motor by reason of the delaying action of thedashpot II'I (Fig. 6). Thus about 50 revolutions of the spindles takeplace before the clutch I64, I is engaged and the short, quicktraversing motion caused by the cam I08 begins. During this winding, areserve bunch of yarn is wound on each bobbin. During the winding ofthis reserve bunch and for a short time thereafter the slow progressivecomponent of the traverse is inactive since the portion of the packagewith which the detector contacts has not as yet reached the shapedetermined by the profile rod I63. As soon as the portion of thispackage on which the winding is taking place reaches the appropriatediameter as determined by the profile rod, the detector and associatedmechanism act to set the cam 928 in motion.

During the winding of the package the detector IE9 is raised inconformity with the slow pro- 5 gressiv component of the traverse andalthough this detector 159 does not partake of the short relativelyquick component of the stroke, it keeps pace with the progressive axialgrowth of the package. This is advantageous in enabling the detector tomaintain continuous contact with the package rather than to be thrustabruptly against the package.

An instant before the cam I reaches its top position, a contact pin 325on the cam makes an electrical connection with a stationary electriccontact 37H, with the result, as explained below, of de-energizing themain motor 390.

After the cam I26 reaches its top position the follower 91 drops rapidlyto the low position shown in Fig. 2 and in so dropping a pin 98 on link95 trips and momentarly opens a pivotally supported switch 3%,tie-energizing the solenoid II! and releasing the clutch shown in Fig. 6so as to uncouple the short quick traverse cam I!!!) from its drivingconnections, allowing the pressure of the follower 96 on this cam torestore it to the low position. (The pivotal support for switch 340 issuch that the switch is normally closed and is not opened by upwardmovement of the pin 98.)

During their last few revolutions of the spindles with the traverse tube83 in its low position, a few turns of yarn are wound upon the lowestpart of the outside of each package. The operator, with the machinestopped, then merely has to pull each wound package off its spindle andsubstitute an empty bobbin, the last few coils of yarn wound on thepackage being transferred onto the bare spindle during this process asis interval of untraversed well-known in spinning machines, there beingclamped by the butt of the new bobbin.

Modified form of winding package detector and traverse control mechanismIn the machine shown in Figs. 10 and 11 parts corresponding to those ofthe other figures are in-' dicated by similar reference characters. Inthese figures the generally vertical rod Iii?) which is moved by thedetector lfiii instead of operating a switch, operates mechanicalconnections that govern driving of the cam I20. Referring to Figs. 10and 11 the cam I00 is driven in the same manner as in the precedingfigures. The cam I2 0 instead of being driven by a separate motor hasits gear wheel I22 driven by a pinion I23 onto which is fastened aratchet wheel 2M adapted to be driven by a pawl 202. The pawl 232 ispivotally mounted at 296 on an oscillating arm 2t! continuouslyoscillated by a connecting link 203' from an eccentric 284 mounted onthe driving shaft of the cam I00, so that when the pawl 262 engages theratchet Wheel 2M, the ratchet wheel is turned to the extent of severalteeth each revolution of the eccentric 234.

On the bracket I66 there is provided a bell crank 2I0 of which thegenerally vertical arm is adapted to contact with the adjustable bolt I32 on the swinging arm I of the feeler mechanism. The bell crank 2) hasits other arm connected by a link 2 I3 to a latch 2M adapted to engagean arm 2!]2 on the pawl 202. When the latch 2I4 is in its low positionas shown in Fig. II and engages and detains the arm 202 movement of thepawl 202 to the right with the oscillating arm 201 instead of turningthe ratchet wheel 20I merely causes the pawl to swing upwardly about itspivot point 286 the pawl thus being prevented from engaging the teeth ofthe ratchet wheel. Thus with the parts in this position the slowprogressive component of the traverse does not take place.

When however the detector H59 makes contact with the winding package andis swung by the winding package so as to swing the arm I65 to the rightin Fig. 11, this acts through the bell crank 2| 0 and link 243 todisengage the latch I24 from the pawl, and thereupon the progressivecomponent of the traverse is started. This continues until the detectorreaches a place on the winding package where it is no longer pushed bythe package sufficiently to cause the rod I63 to hold the latchdisengaged, whereupon the latch drops and the progressive movementtemporarily stops.

It will be seen that in both embodiments of the invention there isprovided a power driven means, driven independently of movement of thedetector, causing the progressive shifting component of the traverse,and means (electrical in Figs. 1 to 9 and mechanical in Figs. 10 and 11)whereby the detector controls such shifting means in accordance with thegrowth of the yarn on the surface of the package.

Wiring diagram of electrical control of the machine 07 Figures 1 to 9Fig. 12 is an electrical diagram of the controls for the machine ofFigs. 1 to 9. A main motor 300 shown as a three-phase motor is providedfor operating the main shaft 38 (Fig. 2) that in turns drives thewinding spindles and the pulley I03 of the friction clutch m4, M5 fordriving the quick-traverse cam Ifiil. Motor 380 is shown in Fig. 12 ascontrolled by a magnetic switch indicated generally at 30! operated by acoil 30 2 and normally open excepting when coil 302 is energized. Fromphase (1) of the current supply there is a circuit extending to amagnetic switch 305 and from thence in branches as follows: From switch305 through the magnetic coil 306 of magnetic switch 335 thence throughmercury switch 330 (which is normally closed) to phase (2) from switch305 through the primary coil of a transformer 3W to phase (2); fromswitch 305 through the solenoid H'I (that acts to engage the frictionclutch I04, I05) to phase (2) From phase (1) of the currentsupply thereis a circuit extending to the right hand upper contact of switch 30I andfrom thence branches as follows: To the upper pole of a three-pole pushbutton starting switch 3 I 2 thence to a push button stop switch 3| 3thence to magnetic coil 302 (which closes the magnetic switch 3!),through mercury switch 330 to phase (2). From this same upper contact ofswitch 3M, to the upper pole of the three-pole push button startingswitch 3I2, thence from the middle pole of that switch to magnetic coil3% of switch 305 (which closes switch 305), through mercury switch 340to phase (2); through switch 30l to the lower right hand contact thencethrough a magnetic circuit-opening switch 3I5 through stop switch 3l3,magnetic coil 302 (that keeps magnetic switch 301 closed) throughmercury switch 340 to phase (2).

The shaded pole motor I2! is connected to receive its current supplyfrom a group of the secondary windings of the transformer 3H], beingconnected in series with the switch I50 that is controlled by theswinging bracket I65 (Figs. 3 and 4). From one or more other groups ofthe secondary windings of the transformer 3I0 is taken a low voltagecurrent adapted to operate the magnetic circuit opening switch 3I5 andextending partially through the ground afforded by the frame of themachine so as to be closed either by dropping of any one of the detectordrop wires I0] or by the contact 320 on the cam I making connection withthe stationary contact 32L This latter connection is made just an,instant before the slow-traverse cam follower 91 drops from the highpart of the cam to its low position.

Suitable electric fans 325 are shown as deriving their current fr-omphases (1) and (3) and connected so as to be deenergized when themagnetic switch is open.

With the magnetic switch 30! open, magnetic switch 305 open, motors l2?and30il stopped and the traverse mechanism in its full line position ofFig. 2, the normal cycle of operations is as follows: Momentarilyclosing the push button starting switch (H2 (the stopping switch 3I3 andmercury switch 3% being normally closed) establishes a circuit whichenergizes the magnetic coil 302 of the switch Bill, closing this 'switchand starting the main motor 303 which starts the winding. This momentaryclosure of starting switch 3I2 also establishes a circuit energizingmagnetic coil 30E of switch 305. Both switches 301 and 305 are then heldclosed during normal running by their respective magnetic coils. Themagnetic coil 3132 is kept energized by a circuit which includes themagnetic circuit-opening switch 3l5, and magnetic coil 3% is keptenergized by a circuit which includes the mercury switch 340.

'The'solenoid I l! is immediately energizedbut the dash pot H3 delaysthe engagement of the friction clutch I04, Hi5 until a few turns of yarnhave been wound on the bobbin, this delay providing a reserve or bunchwinding near the base of each bobbin. When engagement of the frictionalclutch I00, I05 is effected, the quicktraverse cam I0?! beginsoperation.

The slow-traverse motor I2! is operatedf-rom time to time by closure ofthe switch I50 in response to detection of growth of the windingpackages, the slow-traverse mechanism gradually shifting the range ofquick-traverse motion of the rod 2 as the packages are built.

It will be observed from the wiring diagram of Fig. 12 that the pushbutton stop switch 3I3, the drop wires E99, and the contacts 320, 32!can each act to break the circuit through coil 302 and allow the mainmotor switch 30I to open and stop the motor 300 without howeverdeenergizing the clutch solenoid H'I. Thus during the winding eventhough the motor 300 is deenergized, the solenoid I ll remains energizedand keeps the friction clutch I64, I05 connected. Thus when the windingis stopped for the repair of a broken yarn and is started again, thequicktraverse movement will begin again where it left off, and withoutany delay such as would be occasioned if the dash-pot H3 wrere requiredto operate.

Assuming that the packages are wound to their full length, contacts 320and 32! will become connected, de-energizing the main motor. 7 As themain motor and winding spindles coast toa stop, the slow-traversecamfollower 91 drops to its low position, causing an open spiral of yarn to.be wound around each package from the top to the bottom, and a fewturns of yarn to be wound at the base of the bobbin. As this camfollower 91 drops the mercury switch 340 is tripped and momentarilyopened, de energizing magnetic coil 305 and allowing switch 305 to openand deenergize solenoid i ii, releasing the friction clutch I04 andallowing the quick-traverse cam I00 to be turned to its low position bythe 'pressu-reof its follower.

Thereupon-the bobbins of the machine can be changed by the operator inthe manner customary with spinning machines. In changing the bobbins itis preferable to let one or two turns of the yarn wrap around thespindle before breaking the yarn. Then when the next bobbin is put on itis already engaged by the yarn to the wound. After the bobbin has beenchanged. merely pressing a starter button 3I2 will begin the cycle ofoperations again. Thus all the operator has to do is to start themachine going, piece up any breaks that may occur during the winding,and change the bobbins when full.

For the machine of Figs. 10 and 1-1, the wiring shown in Fig. 12 may besimplified by eliminate ing the motor 23, switch I50 and resistance1.51.

I claim:

1. A winding machine having therein a plurality of holders for windingpackages, and a traversing element extending past the several holderstransversely of the winding packages and mounted for movement in a pathadjacent toand generally lengthwise of the several Winding-,packages,the traversing element comprising a tube;

the machine including yarn guiding means posi-' tionecl to direct theyarns to the said .tube from directions such that the several yarns bendaround the tube in running onto the winding packages.

2. A winding machine having therein a plurality of holders for windingpackages, and a,

traversing element extending past the several holders transversely ofthe winding packages and mounted for movement in a path adjacent to andgenerally lengthwise of the several winding packages, the traversingelement comprising a tube and means for mounting the tube comprising arock shaft and arms connecting the tube and rock shaft, the machineincluding yarn guiding means positioned to direct the yarns to the saidtube from directions such that the several yarns bend around the tube inrunning onto the winding packages.

3. A winding machine having therein a plurality of holders for windingpackages, and a traversing element extending past the several holderstransversely of the winding packages and mounted for movement in a pathadjacent to and generally lengthwise of the several winding packages,the traversing element comprising a tube and means for mounting the tubecomprising a hollow rock shaft and arms connecting the tube and rockshaft, the machine including yarn guiding means positioned to direct theyarns to the said tube from directions such that the several yarns bendaround the tube in running onto the winding packages.

4. A winding machine having therein means for traversing the windingyarn with a relatively short stroke progressively moved along the lengthof the winding package, the traversing means including a cam shaped toimpart the short stroke of traverse, and means for imparting theprogressive movement of said short stroke relative to the package, andthe machine including means for automatically returning said cam to aposition of minimum throw at the end of winding a package.

5. A winding machine having therein means for traversing the windingyarn with a relatively short stroke progressively moved along the lengthof the winding package, the traversing means including a cam and afollower pressing against the cam, the cam being shaped to impart theshort stroke of traverse, means driving the cam, and means operativeupon completion of the package to uncouple the cam from said drivingmeans, the cam thereupon being free to be restored to low position bythe pressure of the follower.

6. A winding machine having therein means for traversing the windingyarn with a relatively short stroke progressively moved along the lengthof the winding package, the traversing means including a cam and afollower pressing against the cam, means for driving the cam and meansfor disconnecting the cam from its driving means, the cam having twopoints of maximum throw and intervening points of minimum throw andhaving a sufficiently steep rise and fall that when disconnected fromits driving means the pressure of the follower will return the cam to apoint of minimum throw.

'7..A winding machine having therein means for traversing the windingyarn with a relatively short stroke progressively moved along the lengthof the winding package, the traversing means including a cam and afollower pressing against the cam, means for driving the cam and meansfor disconnecting the cam from its driving means, the cam having aplurality of points of maximum throw and intervening points of minimumthrow and having a suiiiciently steep rise and fall that whendisconnected from its driving means the pressure of the follower willreturn the cam to a point of minimum throw.

8. A winding machine having therein a plurality of holders for windingpackages, means for guiding the winding yarn onto the packages, meansfor imparting to the yarn guiding means a short stroke of traversehaving a length of a fraction of the total length of the package, meansfor imparting to the yarn guiding means a progressive shifting movementsuch as to carry the short stroke of traverse lengthwise of the package,a detector responsive to the attained diameter of one of the windingpackages, means whereby said detector controls said progressive shiftingmovement, and connections for causing the said detector to partake ofthe said progressive shifting movement but not of the said short strokeof traverse.

9. A winding machine having therein means for guiding the winding yarnonto the winding package, means for imparting to the yarn guiding meansa short stroke of traverse having a length of a fraction of the totallength of the package, means for imparting to the yarn guiding means aprogressive shifting movement such as to carry the short stroke oftraverse lengthwise of the package, a detector responsive to theattained diameter of the package, means for moving said detectorlengthwise of the package in accordance with the progressive shiftingmovement but without said short stroke of traverse, and means wherebysaid detector controls said progressive shifting movement.

10. A winding machine having therein means for guiding the winding yarnonto the winding package, means for imparting to the yarn guiding meansa short stroke of traverse having a length of a fraction of the totallength of the package, the means including a cam for imparting to theyarn guiding means a progressive shifting movement such as to carry theshort stroke of traverse lengthwise of the package, driving means forsaid cams, a detector responsive to the attained diameter of thepackage, means whereby the detector controls the driving means for thecam, and means operated by the said cam for progressively shifting thedetector lengthwise of the package.

11. A winding machine having therein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, powermeans for operating said shifting means, a detector responsive to theattained diameter of the winding package, and means whereby saiddetector controls the operation of said shifting means by said powermeans.

12. A winding machine having therein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, amotor for driving said shifting means, a detector responsive to theattained diameter of the winding package, and an electric circuitcontrolling the motor and controlled by said detector.

13. A winding machine having therein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, amotor for driving said shifting means, a detector responsive to theattained diameter of the winding package, and an electric circuitcontrolling the motor and controlled by said detector, said circuitincluding a switch adapted to be closed by the detector upon the packageattaining a predetermined diameter.

14. A winding machine havingtherein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, amotor for driving said shifting means, a detector responsive to theattained diameter of the winding package, and an electric circuitcontrolling the motor and controlled by said detector, said circuitincluding a switch adapted to be closed by the detector, and aresistance shunted across the switch and providing a current tending tobut insufficient to start the motor when the switch is open.

15. A winding machine having therein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, amotor for driving said shifting means, a detector responsive to theattained diameter of the Winding package, and an electric circuitcontrolling the motor and controlled by said detector, said circuitincluding means for supplying to said motor a current tending to butinsufiicient to start the motor and a switch controlled by the detectorfor causing an increased amount of current to be supplied to the motor.

16. A winding machinehaving therein a holder for a winding package, ayarn guide for distributing the winding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, powermeans for driving said shifting means, a detector responsive to theattained diameter of the winding package, and means controlled by saiddetector for controlling the connection of the shifting means to itsdriving means.

17. A winding machine having therein a holder for a winding package, ayarn guide for distributing thewinding yarn on the package, means forshifting said yarn guide progressively lengthwise of the package, a pawland ratchet connection for transmitting driving motion to the shiftingmeans, a detector responsive to the attained diameter of the windingpackage, and means controlled by said detector for rendering said pawland ratchet connection 'eiiective and ineffective.

18. A winding machine having therein a plura1- ity of holders forwinding packages, yarn guiding means for distributing the winding yarnson the plurality of winding packages, builder mechanism adapted toadvance the yarn guiding means lengthwise of the said packages, adetector responsive to the attained diameter of one of the windingpackages, and means whereby said detector controls the lengthwiseadvance of said yarn guiding means by thebuildermechanism.

19. A winding machine having therein a plurality of holders for windingpackages, yarnguiding means for distributing the Winding yarns on theplurality of winding packages'builder mechanismadapted to advance theyarn guiding means lengthwise of the said packages, a detectorresponsive to the attained diameter of one of the winding packages,means for advancing the detector lengthwise of its package, and meanswhereby said detector controls the lengthwise advance of said'yarnguiding means by the builder mechanism.

20. Awinding machine having therein a plurality of holders for windingpackages, yarn guiding means for distributing the winding yarns on theplurality of winding packages, builder mechanism adaptedto advance theyarn guiding means lengthwise of the said packages, means forcontinually comparing the attained diameter of the portion of onepackage at which winding is taking place with a profile representativeof the desired shape of all the Winding packages, and means controlledby said comparing means for controlling the said advance of said'yarnguiding means by the builder mechanism.

21. A winding machine having therein means for guiding the winding yarnonto the winding package, means for imparting to the yarn guiding meansa short stroke of traverse having a length of a fraction of the totallength of the package, means for imparting to the yarn guiding means aprogressive shifting movement such as .to carry the short stroke oftraverse length- Wise of the package, means acting automatically uponcompletion of each full stroke of said long traverse means to restoreboth said long traverse means and said short traverse means to positionssuch that the yarn guiding means is at its endmost position at the baseof the winding package.

22. A. winding machine having therein means for guiding the winding yarnonto the winding package, a relatively fast-moving cam and a relativelyslow-moving cam, and means for combining the motions of said cams andtransmitting to the yarn. guiding means a short stroke of traverseprogressively shifting lengthwise along the winding package, the machineincluding means acting automaticallyupon the completion of one cycle ormotion by the slow-moving cam to restorethe fast-moving cam to aposition of minimum throw.

23. A winding machine having therein means for guiding the winding yarnonto the Winding package, a relatively fast-moving cam and connectionstherefrom to the yarn guiding means, said cam being adapted to impart tothe yarn guiding means a short stroke of traverse, means forprogressively shifting the short stroke of traverse lengthwise along thewinding package, the machine including means acting automatically uponthe completion of the package to restore said fast-moving cam to aposition of minimum throw.

24. A winding machine having therein means for rotating a winding yarnpackage, means .for traversing the winding yarn with a relatively shortstroke progressively moved along the length of the Winding package, thetraversing means including a cam and follower adapted to impart theshort stroke of traverse, means for driving the cam including a clutchnormally disengaged before the beginning of winding, starting meansadapted to start rotation of the winding package and driving of the cam,and means fordelaying engagement of said clutch after starting ofrotation of the winding package.

25. A winding machine having therein means for rotating a Winding yarnpackage, means for traversing the winding yarn with a relatively shortstroke progressively moved along the length of the winding package, thetraversing means 'includinga'cam and follower adapted to impart theshort stroke of traverse, means for driving the cam including a clutchnormally disengaged be fore the beginning of winding, starting meansadapted to start rotation of the windingpackage and driving of the cam,said starting means including a solenoid adapted to cause engagement ofthe clutch and a dash pot adapted to delay engagementof theclutch afterstartingof the rotationof the winding package.

26. A winding machine having therein means for rotating a winding yarnpackage, *m-ean-s for traversing the winding yarn with a relativelyshort stroke progressively moved along the length of the windingpackage, the traversing means including a cam and follower adapted toimpart the short stroke of traverse, means for driving the cam includinga clutch, means including a solenoid for engaging the clutch, andstarting mechanism including means for energizing the solenoid.

27. A winding machine having therein means including a motor forrotating a winding package, traversing means including a builder cam, asecond motor for driving the builder cam, means for de-energizing thepackaging-rotating motor, said de-energizing means comprising a circuitcontrolled by rotation of the builder cam to a predetermined point inits cycle, and means for de-energizing the second motor afterde-energization of the package-rotating motor thereby to allow thebuilder cam to complete its cycle of rotation.

28. A winding machine having therein means including a motor forrotating a winding package, traversing means including a builder cam anda faster moving short stroke cam, a second motor for driving the buildercam, means including a clutch for driving the short stroke cam, andmeans controlled by the rotation of the builder cam for de-energizingthe package rotating motor, for releasing said clutch and forde-energizing said second motor.

29. A winding machine having therein means including a motor forrotating a winding package,

traversing means including a builder cam of generally spiral shapehaving a relatively steep iall from its position of maximum throw to itsposition of minimum throw, means actuated as a consequence of rotationof the cam to a position before said fall to tie-energize the packagerotating motor, a second motor for driving said cam, and means actuatedas a consequence of rotation of the cam to a position during said fallto de-energize said second motor.

30. A winding machine having therein a winding package holder and a yarntraversing element, means for imparting to the traversing element astroke of less length than the length of the winding package, a detectorresponsive to the position of the surface of the package, power drivenmeans driven independently of movement of the detector by the packagefor shifting the range of stroke of the traverse lengthwise of thewinding package, and means whereby the detector controls said powerdriven means in accordance with the growth of yarn on the surface of thepackage.

31. A Winding machine having therein a winding package holder and a yarntraversing element, means for imparting to the traversing element astroke of less length than the length of the winding package, a detectorresponsive to the position or the surface of the package, a motor andconnections driven by said motor for shifting the range of stroke of thetraverse lengthwise of the winding package, and means whereby saiddetector controls said motor.

32. A winding machine having therein a winding package holder and a yarntraversing element, means for imparting to the traversing element astroke of less length than the length of the winding package, a detectorresponsive to the position of the surface of the package, mecha nismsfor shifting the range of stroke of the traverse lengthwise of thewinding package, means for connecting said shifting mechanism to asource of power, and means whereby said detector controls saidconnecting means.

33. A winding machine having therein a traversing yarn guide, a crosslink, a fast-moving cam adapted to react on the link adjacent to one endthereof, and a, slow-moving cam adapted to react on the link adjacent tothe other end thereof, and a connection from the link adjacent to themiddle thereof to the yarn guide, the fastmoving cam serving to impartto the yarn guide a stroke of traverse of less length than the length ofthe winding package and the slow-moving cam serving to shift said strokeof traverse lengthwise of the winding package.

34. A winding machine having therein means for driving the windingpackage, a yarn guide adapted to distribute the winding yarn on thewinding package, means for imparting to said yarn guide a traversingstroke of less length than the length of the finished package, meansincluding a cam for shifting the stroke of traverse of the yarn guidelengthwise of the winding package, the cam having a cycle of motioncomprising a slow rise during the main part of winding of the package,and a rapid fall after the package has been wound to its full length,and means actuated as a consequence of the cam attaining a positionslightly in advance of its maximum rise to stop said driving means.

35. A winding machine having therein means including an electric motorfor driving the winding package, a yarn guide adapted to distribute thewinding yarn on the winding package, means for imparting to said yarnguide a traversing stroke of less length than the length of the finishedpackage, means including a cam for shifting the stroke of traverse ofthe yarn guide lengthwise of the winding package, the cam having a cycleof motion comprising a slow rise during the main part of winding of thepackage, and a rapid fall after the package has been wound to its fulllength, and an electric circuit for stopping said motor, said circuitincluding a contact closed as a consequence of the cam attaining aposition slightly in advance of its maximum rise.

36. In a winding machine, means for holding a winding package duringwinding, yarn traversing teams, a movably mounted feeler adapted tocontact the surface of the winding package, means for shifting thefeeler lengthwise of the winding package as the package grows, a movableprofile element against which the feeler bears and means operated bymovement of the profile element to control the yarn-traversing means.

37. In a Winding machine, means for holding a winding package duringwinding, yarn traversing means, a feeler adapted to contact the surfaceof the winding package, means for shifting the feeler lengthwise of thewinding package as the package grows, a pivotally mounted profileelement against which the feeler bears and means operated by pivotalmovement of the profile element to control the yarn-traversing means.

38, A winding machine having therein means for holding a winding packageduring winding, a traversing yarn guide, means for imparting to saidyarn guide a traversing stroke of less length than the length of thefinished package, means for shifting the stroke of traverse lengthwiseof the winding package, a movably mounted feeler adapted to contact thesurface of the winding package, a movable profile element against whichthe feeler bears and means operated by movement of the profile elementto control said shifting means.

39. A winding machine having therein means for holding a winding packageduring winding, a traversing yarn guide, means for imparting to saidyarn guide a traversing stroke of less length than the length of thefinished package, means for shifting the stroke of traverse lengthwiseof the winding package, a movably mounted feeler adapted to contact thesurface of the winding package, a movable profile element against whichthe feeler bears, means operated by movement of the profile element tocontrol said shifting means, and means whereby said shifting meanscauses the feeler to move lengthwise of the package as the packagegrows.

40. A winding machine having therein means for holding a winding packageduring winding, a traversing yarn guide, means for imparting to saidyarn guide a traversing stroke of less length than the length of thefinished package, means for shifting the stroke of traverse lengthwiseof the winding package, a profile element, a pivoted arm carrying theprofile element, a feeler adapted and means whereby said shifting meanscauses the feeler to move lengthwise of the package as the packagegrows.

41, A winding machine having therein means for rotating a windingpackage, means for distributing the winding yarn on the package, meansfor shifting said yarn guide progressively axially of the package, powermeans for operating said shifting means, a detector responsive to theattained diameter of the winding package, and means cooperating with thedetector to control the operation of said shifting means by said powermeans to wind a package having a prede- 20 termined profile.

EDWARD J. ABBOTT.

